81840 - Multiplexer, 128 Channel, Fault Protected

81840
128 Channel Multiplexer
ADDRESS ENABLE
COMMON TO ALL
INPUT MUX’s
8
CASCADE
INPUT
BYPASS
4
8
16:1
1840A
IN
16
ADDRESS
ENABLE
CLAMP/
PRECHARGE
ADDRESS
ENABLE
7
V+
(+15V)
4
5
5
GRND
GRND
IN
IN
128 TOTAL
ANALOG INPUTS
16:1
1840A
5
OUT
16:1
1840A
IN
8
81840
IN
+
OUT
POSITIVE
OUTPUT
8
GRND
16
V(-15V)
GRND
16:1
1840A
(8 TOTAL 1840A’s)
GROUND
REFERENCE
INPUTS
IN
8
8
SPARE
INPUTS
8
IN
16:1
1840A
-
OUT
NEGATIVE
OUTPUT
5
16:1
1840A
IN
16:1
1840A
OUT
SPARE
OUTPUT
GRND
8
5
8
5
ADDRESS ENABLE
GRND
4
4
See page 2 for pin assignments.
ADDRESS
ENABLE
SPARE
OUTPUT
ADDRESS GRND
ENABLE
8
VREF
(+5V)
SPARE
INPUT
Memory
GRND
4
ADDRESS
ENABLE
FEATURES:
DESCRIPTION:
• 128 channel multiplexer, MCM
• Package:
- 256 pin RAD-PAK® quad flat pack
• Total dose hardness:
- > 300 krads(Si)
• - Dependent upon orbit
• Excellent Single Event Effects:
SEL: > 110 MeV-cm2/mg
SEU: > 110 MeV-cm2/mg
Maxwell Technologies’ 81840 high-performance 128-channel
multiplexer features a typical 300 krad (Si) total dose tolerance.
This datasheet defines the design, performance, and test requirements for a hermetic, telemetry multiplexer, multi-chip-module
(MCM), utilizing chip and wire technology to be used in space
systems. The 81840 is intended for use in the environments
encountered by high reliability spacecraft applications. The patented radiation-hardened RAD-PAK® technology incorporates radiation shielding in the microcircuit package. Capable of surviving
in-space environment, the 81840 is ideal for satellite, spacecraft,
and space probe missions. It is available up to Class K screening.
06.17.02 REV 5
(858) 503-3300 - Fax: (858) 503-3301 - www.maxwell.com
All data sheets are subject to change without notice
1
©2021 Maxwell Technologies
All rights reserved.
81840
128 Channel Multiplexer
81840 Pinout Diagram
Memory
06.17.02 REV 5
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2
©2021 Maxwell Technologies
All rights reserved.
81840
128 Channel Multiplexer
TABLE 1. PINOUT DESCRIPTION
SYMBOL
1, 23, 42, 64, 65, 81, 112, 128, 129, 151, 171,
192, 193, 213, 236, 256
GND
2-9, 13-16, 18-21, 24-31, 34-41, 44-47, 49-52,
56-63, 66-73, 77-80, 82-85, 87-90, 92-95, 98101, 103-106, 108-111, 113-116, 120-127, 130137, 141-144, 146-149, 152-159, 162-169,
AIN1 - 128
10, 22, 32, 33, 43, 55
CLP1 - 6
11, 54, 75, 96, 97, 107, 117, 118, 138, 139, 150,
160, 161, 170, 182, 203, 214, 223, 228, 233,
240, 244, 249
NC
12, 53, 76, 117, 140, 181, 204, 245
+15V
17, 48, 91, 102, 145, 176, 215, 234
-15V
172-175, 177-180
SP1IN1 - 8
184-191
SP2IN1 - 8
194-201
GRIN1 - 8
183, 202, 250
+5V
206-212
CASIN1 - 7
216
H1EN
217
BYPASS
218
SP2EN
224
SP1EN
222-219
HA0 - 3
227-225
SP2A0 - 2
229
CASEN
233-230
SP1A0 - 2
235
L1EN
239-237
CASA0 - 2
243-241
LA0 - 2
248-246
GRA0 - 2
252
SP1OUT
251
SP2OUT
253
NEGATIVE
254
POSITIVE
255
GREN
06.17.02 REV 5
DESCRIPTION
Memory
PIN
All data sheets are subject to change without notice
3
©2021 Maxwell Technologies
All rights reserved.
81840
128 Channel Multiplexer
TABLE 2. 81840 ABSOLUTE MAXIMUM RATINGS1,2,3,4
ENVIRONMENT
RANGES
V+ To Ground
20V
V- To Ground
-20V
Input Overvoltage, AIN(1) to AIN(128)
35V to-35V
(Power ON or OFF)
4V over VREF and -4V below
Grd
Input Overvoltage, Logic Inputs
Power Dissipation
500mW Maximum
Storage Temperature
-65 to 150°C
Operating Temperature
-55 to 125°C
Memory
1. The LMUX MCM is designed to operate with power supply voltages ranging
from ±5.2V to ±20VDC.
2. The maximum voltage each input AIN(128:1) may see without damage is
+35V to -35V with respect to ground.
3. Stresses above the absolute maximum rating may cause permanent damage
to the device. Extended operation at the maximum levels may degrade performance and affect reliability.
4. TA = 25°C unless otherwise specified.
TABLE 3. 81840 AC ELECTRICAL CHARACTERISTICS
PARAMETER
TEST CONDITIONS
SUBGROUPS
TEST LIMITS
TA = 25°C
Address Input to I/O Channels
Prop. Delay
tON(A)
tOFF(A)
VIN = 5.0V
RL = 5k>
CL = 50pF
9, 10, 11
Enable to I/O
tON(EN)
tOFF(EN)
VIN = 5.0V
RL = 5k>
CL = 50 pF
9, 10, 11
On Channel Isolation
VISO(ON)
All enable = 0.8V
VIN = 3VRMS @
500kHz1
4, 5, 6
Off Channel Isolation
VISO(OFF)
All enable = 4.0V
VIN = 3VRMS @
500kHz1
4, 5, 6
UNITS
TA = 125°C
TA = -55° C
MIN
MAX
MIN
MAX
MIN
MAX
---
1500
1500
---
1500
1500
---
1500
1500
nsec
---
1500
1500
---
1500
1500
---
1500
1500
nsec
45
--
45
--
45
--
db
45
--
45
--
45
--
db
1. Controlled by design, not directly tested.
06.17.02 REV 5
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4
©2021 Maxwell Technologies
All rights reserved.
81840
128 Channel Multiplexer
TABLE 4. DELTA LIMITS
PARAMETER
VARIATION
IS+
±10%
IS-
±10%
ISB+
±10%
ISB-
±10%
TABLE 5. 81840 ELECTRICAL TEST TABLE
PARAMETER
TEST CONDITIONS
SUBGROUPS
TEST LIMITS
TA = 25°C
TA = 125°C
TA =-55°C
MIN
MAX
MIN
MAX
MIN
MAX
-15
15
-15
15
-15
15
V
Bypass Output, On-Resistance, 5V, RBP(ON)
VIN = 5V
IOUT = -1.0mA
1, 2, 3
2.0
6.0
2.0
6.0
2.0
6.0
kΩ
Positive Output, On-Resistance, 5V, RPO(ON)
VIN = 5V
IOUT = -1.0mA
1, 2, 3
3.0
9.0
3.0
9.0
3.0
9.0
kΩ
Negative or Spare Output, On- VIN = 5V
Resistance,
IOUT = -1.0mA
5V, RNS(ON)
1, 2, 3
1.0
3.0
1.0
3.0
1.0
3.0
kΩ
Bypass Output, On-Resistance, -5V, RBP(ON)
VIN = -5V
IOUT = 1.0mA
1, 2, 3
2.0
6.0
2.0
6.0
2.0
6.0
kΩ
Positive Output, On-Resistance, -5V, RPO(ON)
VIN = -5V
IOUT = 1.0mA
1, 2, 3
3.0
9.0
3.0
9.0
3.0
9.0
kΩ
Negative or Spare Output, On- VIN = -5V
Resistance,
IOUT = 1.0mA
-5V, RNS(ON)
1, 2, 3
1.0
3.0
1.0
4.0
1.0
4.0
kΩ
Input Leakage Current, LA0,
All unused pins = Ground
LA1, LA2, HA0, LIEN, Address
or Enable Pins, IAH, IAL
1, 2, 3
-100
100
-200
200
-200
200
nA
Input Leakage Current, All
Other Address or Enable Pins
IAH, IAL
All unused pins =
Ground
1, 2, 3
-100
100
-200
200
-200
200
nA
Leakage Current into MUX
Input Channels, AINxx, GRINx,
SP1INx, SP2INx, CASINx,
+IS(OFF)
VIN = 10V,
All enables = 4.0V
All unused inputs &
outouts = -10V
1, 2, 3
-20
20
-100
100
-100
100
nA
Leakage Current into MUX
Input Channels, AINxx, GRINx,
SP1INx, SP2INx, CASINx, IS(OFF)
VIN = -10V
All enables = 4.0V
All unused inputs &
outputs = +10V
1, 2, 3
-20
20
-100
100
-100
100
nA
06.17.02 REV 5
All data sheets are subject to change without notice
Memory
Analog Signal Range, V0
UNITS
5
©2021 Maxwell Technologies
All rights reserved.
81840
128 Channel Multiplexer
TABLE 5. 81840 ELECTRICAL TEST TABLE
PARAMETER
TEST CONDITIONS
SUBGROUPS
TEST LIMITS
UNITS
TA = 25°C
TA = 125°C
TA =-55°C
MIN
MAX
MIN
MAX
MIN
MAX
VIN = 25V
VS+, VS-, VREF, VA, VEN &
All unused
inputs = Ground
1, 2, 3
-50
50
-100
100
-100
100
nA
Leakage Current into MUX
Input Channels, AINxx, GRINx,
SP1INx, SP2INx, CASINx,
Positive Overvoltage,
+IS(OFF)0V1
VIN = 35V, CLPx,
SP1OUT, SP2OUT,
BYPASS, POSITIVE,
NEGATIVE = 0.0V
All enables = 4.0V
All unused = GND
1, 2, 3
-100
100
-200
200
-200
200
nA
Leakage Current into MUX
Input Channels, AINxx, GRINx,
SP1INx, SP2INx, CASINx,
Negative Overvoltage, IS(OFF)0V1
VIN = -35V, CLPx,
SP1OUT, SP2OUT,
BYPASS, POSITIVE,
NEGATIVE =0.0V
All enables = 4.0V
All unused = GND
1, 2, 3
-100
100
-200
200
-200
200
nA
Leakage Current into MUX
Output Channels, SP1OUT,
SP2OUT, POSITIVE, NEGATIVE, Positive Overvoltage,
+ID(OFF)0V1
VIN = 35V, CLPx,
SP1OUT, SP2OUT,
BYPASS, POSITIVE,
NEGATIVE = 0.0V
All enables = 4.0V
All unused = GND
1, 2, 3
-75
75
-200
200
-200
200
nA
Leakage Current into MUX
Output Channels, CLPx,
BYPASS, +ID(OFF)0V1
VIN = 35V, CLPx,
SP1OUT, SP2OUT,
BYPASS, POSITIVE,
NEGATIVE = 0.0V
All enables = 4.0V
All unused = GND
1, 2, 3
-100
100
-400
400
-400
400
nA
Leakage Current into MUX
Output Channels, SP1OUT,
SP2OUT, POSITIVE, NEGATIVE, Negative Overvoltage, ID(OFF)0V1
VIN = -35V, CLPx,
SP1OUT, SP2OUT,
BYPASS, POSITIVE,
NEGATIVE = -10V
All enables = 4.0V
All unused = 0.0V
1, 2, 3
-75
75
-200
200
-200
200
nA
Leakage Current into MUX
Output Channels, CLPx,
BYPASS, -ID(OFF)0V1
VIN = -35V, CLPx,
SP1OUT, SP2OUT,
BYPASS, POSITIVE,
NEGATIVE = -10V
All enables = 4.0V
All unused = 0.0V
1, 2, 3
-100
100
-400
400
-400
400
nA
06.17.02 REV 5
All data sheets are subject to change without notice
Memory
Leakage Current into MUX
Input Channels, AINxx, GRINx,
SP1INx, SP2INx, CASINx,
Power off, +IS(OFF)PO
6
©2021 Maxwell Technologies
All rights reserved.
81840
128 Channel Multiplexer
TABLE 5. 81840 ELECTRICAL TEST TABLE
PARAMETER
TEST CONDITIONS
SUBGROUPS
TEST LIMITS
UNITS
TA = 25°C
TA = 125°C
TA =-55°C
MIN
MAX
MIN
MAX
MIN
MAX
All VIN = 10V, CLPx,
SP1OUT, SP2OUT,
BYPASS, POSITIVE
NEGATIVE = 10V
All enables = 0.8V
All unused = 0.0V
1, 2, 3
-20
20
-100
100
-100
100
nA
Leakage Current into off MUX
Output Channels, CLPx,
SP1OUT, SP2OUT, BYPASS,
POSITIVE, NEGATIVE, -ID(OFF)
All VIN = -10V, CLPx,
SP1OUT, SP2OUT,
BYPASS, POSITIVE,
NEGATIVE = 10V
All enables = 0.8V
All unused = 0.0V
1, 2, 3
-20
20
-100
100
-100
100
nA
Leakage Current into on MUX
Output Channels, CLPx,
SP1OUT, SP2OUT, BYPASS,
POSITIVE, NEGATIVE, -ID(ON)
Note: Sequence all inputs for
each output.
Output and Input Under
Test = 10V
All unused VIN = 10V
All enables = 0.8V
1, 2, 3
-20
20
-100
100
-100
100
nA
Leakage Current into on MUX
output Channels, CLPx,
SP1OUT, SP2OUT, BYPASS,
POSITIVE, NEGATIVE, ID(ON)
Note: Sequence all inputs for
each output
Output and Input Under
Test = -10V
All unused VIN = -10V
All enables = 0.8V
1, 2, 3
-20
20
-100
100
-100
100
nA
1, 2, 3
4.5
7.0
4.5
7.0
4.5
7.0
V
VIN = 5.0V
1, 2, 3
--
0.3
Vref
--
0.3
Vref
--
0.3
Vref
V
Input Voltage High VIH2
VIN = 5.0V
1, 2, 3
0.7
Vref
--
0.7
Vref
--
0.7
Vref
--
V
Supply Current for
IS+
IS-
All enables = 0.8V
1, 2, 3
0.65
-0.65
6.5
-6.5
0.65
-0.65
6.5
-6.5
0.65
-0.65
6.5
-6.5
mA
Standby Supply Current for
ISB+
ISB-
All enables = 0.8V
0.65
-0.65
6.5
6.5
0.65
-0.65
6.5
-6.5
0.65
-0.65
6.5
-6.5
mA
VREF
Input Voltage Low VIL
2
Memory
Leakage Current into off MUX
Output Channels, CLPx,
SP1OUT, SP2OUT, BYPASS,
POSITIVE, NEGATIVE,
+ID(OFF)
1, 2, 3
1. Current limit set to 10 µ A during test.
06.17.02 REV 5
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©2021 Maxwell Technologies
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81840
128 Channel Multiplexer
2. For VIH and VIL measurements, VREF will equal 4.5V and 5.5V.
3. Unless otherwise specified:
- V- = -15.0V
- V+ = 15.0V
- VREF = 5.0V
- VAH = 4.0V
- VAL = 0.8V
Memory
06.17.02 REV 5
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8
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All rights reserved.
81840
128 Channel Multiplexer
FIGURE 1. 81840 ADDRESS DECODING SCHEME
TELEMETRY CHANNEL
AIN(1)
AIN(2)
AIN(3)
AIN(4)
AIN(5)
AIN(6)
AIN(7)
AIN(8)
AIN(9)
AIN(121)
AIN(122)
AIN(123)
AIN(124)
AIN(125)
AIN(126)
AIN(127)
AIN(128)
06.17.02 REV 5
Memory
ADDRESS INPUTS
LA (0,4)
0000000
0000001
0000010
0000011
0000100
0000101
0000110
0000111
0001000
"
"
"
1110111
1111001
1111010
1111011
1111100
1111101
1111110
1111111
All data sheets are subject to change without notice
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©2021 Maxwell Technologies
All rights reserved.
81840
128 Channel Multiplexer
Memory
256-PIN RAD-PAK® QUAD FLAT PACKAGE
DIMENSIONS
SYMBOL
MIN
NOM
MAX
A
.302
.329
.356
b
.005
.007
.009
c
.005
.006
.007
D
1.438
1.450SQ
1.462
D1
1.260BSC
e
.020BSC
L
3.010
3.040
3.070
L1
2.970
3.000
3.030
L2
2.178
2.200
2.222
A1
.253
.275
.297
N
256
F1
1.215
1.220
1.225
F4
1.215
1.220
1.225
Q256-01
All dimensions in inches
06.17.02 REV 5
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©2021 Maxwell Technologies
All rights reserved.
81840
128 Channel Multiplexer
Important Notice:
These data sheets are created using the chip manufacturer’s published specifications. Maxwell Technologies verifies
functionality by testing key parameters either by 100% testing, sample testing or characterization.
The specifications presented within these data sheets represent the latest and most accurate information available to
date. However, these specifications are subject to change without notice and Maxwell Technologies assumes no
responsibility for the use of this information.
Maxwell Technologies’ products are not authorized for use as critical components in life support devices or systems
without express written approval from Maxwell Technologies.
Any claim against Maxwell Technologies must be made within 90 days from the date of shipment from Maxwell Technologies. Maxwell Technologies’ liability shall be limited to replacement of defective parts.
Memory
06.17.02 REV 5
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©2021 Maxwell Technologies
All rights reserved.
81840
128 Channel Multiplexer
Product Ordering Options
Model Number
81840
RP
Q
X
Option Details
Feature
Multi Chip Module (MCM)
K = Maxwell Class K
H = Maxwell Class H
I = Industrial (testing @ -55°C,
+25°C, +125°C)
E = Engineering (testing @ +25°C)
Package
Q = Quad Flat Pack
Radiation Feature
RP = RAD-PAK® package
Base Product
Nomenclature
128 Channel Multiplexer
06.17.02 REV 5
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Memory
Screening Flow
12
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